Combination key-controlled sliding-bolt lock.



`P IVIIANO.

COMBINATION KEY CONTROLLD SLIDING BOLT LOCK.

APPLICATION FILED SEPT. 25. 1911.

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ATTORNEY P. MIANO.

CIVIBINATION KEY CONTROLLI-JD SLIDING BOLT LOCK.

APPLICATION FILED SEPT.25. i917.-

Pnted 955251919.

2 SHEETS--SHEET 2.

I Ef@ INVENTOR @Wiz/0 W95/Z0.

ATTORNEY 'ran nien.

POMPILIO MIANO, 0F BRONX, NEW YORK.

Specification of Letters Patent.

Patented Feb. 25, 1919.

Application led September 25, 1917. Serial No. 193,135.

To all whom t may Concern:

Be it known that I, Pourinio MIANO, a citizen of the United States, residing at Bronx, in the county of New York and State of New York, have invented certain new and useful Improvementsin Combination Key- Controlled Sliding-Bolt Locks, of which the following is a specification.

This invention relates to locks of the class requiring different movements of a key and knowledge of the particular manner of Inanipulating the key to enable the lock to be opened.

The object of the invention is to provide a simply constructed and efficient lock of this character which will reliably prevent those unacquainted with the combination from releasing the bolt thereby insuring safety to all doors equipped therewith.

Another object is to provide means whereby the simple turning of the key inv backward direction will project the bolt into locked operative position where it will remain until againreleas'ed by the correct manipulation of the key which controls the combination.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in they details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

f In the accompanying drawings Figure 1 represents a vertical section through a lockcasing with the lock embodying this invention shown in front elevation therein and with the parts in locked operative position,

Fig. 2 is a vertical transverse section taken on the line 2-2 of Fig. 1 looking in the direction of the arrow a,

Fig. "3 is a similar view taken on the same line and indicated at 3-3 looking in the direction of the arrow b,

Fig. 4 is a longitudinal section taken on the line 4 4 of Fig. 1,

Fig. 5 is a side elevation of the key used in connection with this lock,

Fig. 6 is a longitudinal Section through the key socket, and y Fig. 7 is an end elevation of the key.

. is shown clearly in Fig. 1.

In the embodiment illustrated, a rectangular casing 1 is shown comprising a rear wall 2 and a front wall 3, the latter having a right-angularly disposed integral flange 4 against which the rear wall of plate 2 is designed to fit as is shown clearly in Figs. 2, 3 and 4, said ange 4 operating as a spacer for the two plates. As is shown clearly in the figures above referred to, the meeting edges of plate 2 and flange 4 are beveled as shown at 5, to insure the close fitting of the parts. These plates are secured in locked position after the bolt members have been properly mounted therein by screws which pass through openings 6 in ythe rear wall plate and through corresponding openings, not shown, in the front plate, said screws after beingso positioned having their heads burnished to remove all means for detaching them so that access to the interior of the lock is prevented, the parts after having once been placed therein being practically sealed. Spacing sleeves 7 preferably surround the apertures through which the fastening elements in plate 2 pass as is shown clearly in Figs. 1, 2, 3 and 4.

A locking bolt 8 is mounted to slide transversely through the casing 1 through openings 9 and 9 formed in the vfront and rear edges, respectively, said bolt being mounted within the casing in guides formed by straps or keepers 10 carried by the rear plate 2.

This bolt 8 Yis provided near its front end in its upper edge with a square notch 11 and at a point spaced rearwardly therefrom'with t'wo beveled or inclined ratchet-like notches 12 and 13 for a purpose presently to be described. The lower edge of this bolt 8 is provided near its rear end with a notch 27 which is designed to receive when in projected operative position a locking linger 15 carried by a bolt or sliding catch 16 mounted to slide transversely relatively to bolt 8 in guides or keepers 17 carried by plate 2 as This bolt 16 is provided on its opposite edges with two seriesof teeth 18 and 19, the teeth 18 on the rear edge of the bolt being designed to be. engaged by a spring pressed detent 2O mounted to slide in a keeper 21. This detent .204 is normally forced forward into pro- 24 being carried by said lug and projecting into said spring to operate as a guide therefor.

The bolt 16 is also forced normally toward bolt 8 by means of a coiled spring 25 mounted between a lug 26 projecting laterally inward from plate 2 and the rear end of said bolt 16, which latter has an upstanding flange 16 to prevent its being forced through the lower keeper 17.

i4 forwardly extending finger 14 overlaps the bolt 16 extending transversely theieof as is shown clearly in Fig. 1 and underwhich is a spring 28 arranged longitudinally on the outer face of said bolt 16 and against which said linger presses thereby operating to force the bolt toward plate 2 and prevents lateral movement thereof thereby. insuring the engagement of the teeth. of said bolt with said spring pressed detent 21 on one side thereof and on the other side with a toothed pawl This pawl 29 is pivoted at 30 on a stud which projects laterally from plate 2 and the rear end of said pawl is provided with a plurality of teeth 29 which mesh with the teeth 19 at the front edge of bolt 16 so that when said pawl is arranged on said pivot the bolt 16 will be projected or retracted according to the direction in which the pawl is turned. This pawl 29 tapers toward its front end and has a coiled spring 31 connected with a nose 32 thereof at a point spaced inwardly from its terminal, the other end of said spring being engaged with a support here shown in the form of a split lug 33 projecting laterally inward from plate 2.

It will thus be seen that when the nose of pawl 29 is raised against the tension of spring 31 that the toothed end thereof which meshes with the teeth 19 of boltI 16 will operate to force said bolt downwardly against the tension of the expansion spring and it may be held in this position by the engagement of the detent 20 with one of the teeth 1S at the rear edge of the bolt 16, saiddetent thus operating to hold bolt 16 in retracted position with the finger 15 out of engagement with notch 14 of bolt 8. Hence it will be obviousthat in order that this bolt be held in retracted position by the detent 20 that a partial turnl only must be given pawl 29 suflicient to cause the. dete-nt to spring into one of the teeth 18 of bolt 16.

Mounted for locking engagement with the ratchet shaped teeth 12 and 13 en the upper edge of the bolt 3 is a substantially S-shaped spring 34 having one end thereof flattened as shown at 35 to form an attaching plate which is riveted to the.` rear wall 2 of the casing at a point near its upper end as is shown clearly in Fig. 1. The body portion of this spring which is made of a heavy strip of resilient metal lies parallel with the upper edge of bolt S and has one edge thereof cut out to form a locking tooth 36, the spring being curved downwardly at this point to adapt said tooth to snap into engagement with one of the recesses 12 or 13 in Athe *bolt according to the position in which said bolt is located and as will beV presently more fully hereinafter described. This spring 34 has a loop-shaped end 37 which lies against the upper face of `bolt 3 with one end 3S of the loop projecting beyond the lower edge of the bolt and disposed in the path of the wards of a key hereinafter to be described, so that whenv said key engages said loop7 the spring will be forced upwardly to release its tooth 36 from engagement with the recesses of bolt` S. This unlocking of spring 34 cannot however, be effected until the bolt is released from engagement with a spring pressed catch 39 which is mounted to slide in a plane at right angles to. the plane of movement of bolt 8 and to engage the rccess 11 in its upper edge near the front thereof when the bolt is in projected operative position as is shown clearly in Fig. 1. This catch 39 is made in the .form of a block mounted to slide in transversely spaced guides 40 and has a stud 41 proj ecting outwardly therefrom through a slot 42 in a head 43 carried 'by one end of a link 44. A coiled spring 45 is mounted in this slot and bears at one end against the stud 40 and at its other end against the outer wall of the slot, an overhanging finger 46 being provided to prevent the lateral displacement of said spring as is shown clearly i-n Figs. 1 and 3. It will thus be seen that this spring bearing against the stud 41 operates to force the catch 39- normally toward bolt 8 to adapt it to interlockingly engage with the recess 11 when said bolt is in operative projected position.

The link 44 has its lower end pivotally connected with a bolt 47 mounted to slide in a plane at right angles to the path of movement of bolt 8, said bolt 47 beingl here shown guided in a keeper 43. This bolt 4T is provided on its front face with aprojectinglug- 49 for a purpose presently to be described. The rear edge of this bolt has a series of teeth 50 with which mesh the teeth 51 of a pawl pivoted on a stud projecting laterally from plate 2. This pawl 53 tapers toward its rear end and has a coiled spring 54 connected at one end thereof at a point spaced inwardly from the nose thereof, the other end of said coiled spring being anchored on a split stud 56 projecting laterally from plate 2.

A plate spring 57 is anchored at one end to a split stud 5S carried by plate 2 and has its other end bent laterally inward to form a hook-shaped head 59 which is designed to bear on the projecting lug 49 when the bolt 47 is in locked position and to spring under said projection when the bolt is in raised position thereby yieldably holding said bolt in raised position.` The raising of this bolt 47 is accomplished by means of the turning of the pawl 52 which is actuated by a key presently to be described. By an inspection of Fig.1 it will be obvious that when the nose 55 of p-awl 52 is moved downwardly the toothed end thereof will move up and thereby carry with it bolt 47 which, through the link 44 will operate to raise catch 39 sufficiently to cause it to clear the recess 11 in bolt 8. Then this bolt 47 is so raised the head 59 of spring 57 will spring under the projection 49 and hold bolt 47 in raised position with the catch 39 held thereby out of engagement with 'bolt 8. It will thus be seen that when the finger 15 of bolt 16 and lthe catch 39 controlled by bolt 47 are out of engagement with the recesses 11 and 14 of bolt 8 that the spring 34 may then be released from its locking engagement with bolt 8 by the upward movement of loop 38 which is accompli-shed by a key presently to be described, and simultaneously with the lifting of this loop a slight rearward movement is imparted to bolt 8 so that the recessed portion thereof passes beyond the tooth 36 of spring 34 thereby preventing said tooth from locking the bolt.V

The bolt 8 may then be retracted in a manner presently to be described.

Oppositely disposed keyholes as 60 are formed in both plates 2 and 3 at a point midway between the noses 32 and 55 of the pawls 29 and 52 as is shown clearly in Fig. 1, the slots of said keyholes being disposed downwardly as shown. Rotatably mounted in the upper end of the keyholes is a sleeve 61 having annular shoulders 62 and 63 spaced inwardly from the opposite ends thereof as is shown clearly in Fig. 6 and which are designed to enga-ge the inner faces of plates 2 and 3 and operate as stops so that said sleeve will be held in position with its ends mounted to rotate in said keyholes. A pintle 64 extends longitudinally through this sleevef61 and is held in centered position therein by means of a pin 65 which eX- tends between pintle 64 and said sleeve at a point opposite the opening or slot 66 which extends from top to bottom of the sleeve at the front end thereof and across which is a 'pin 67 which is also secured to the pintle 64. It will thus be seen that this pintle 64 is rigidly anchored within the slot and is designed to receive a key 68 shown in Fig. 5. This key 68 has a slot 69 extending inwardly from a point opposite the ward 70 thereof and this slot 69 when the `key7 is engaged with the pintle 64 is designed to fit over the pin so that the key will be securely connected with the sleeve andthe ti'irning of In the operation of this lock, with. the

parts shown in the position indicated in Fig. 1, in which position the bolt 8 is in projected locking posit-ion, and is held locked by the finger 15, catch 39 and tooth 36 of spring 34, to release said bolt 8 and permit its withdrawal, the key 68 is first inserted through the key hole 60 and is turned to the left. This turning will cause the terminal 71 of the bit of the key which has a groove 72 formed transversely thereof at the base of said terminal and which is designed to pass over the arcuate guide lug 73 projecting from plate 2 to engage the lower edge of nose 32 of pawl 29. This turning is continued until said nose is forced upwardly a sufiicient distance against the tension of spring 31 to cause the lowering of bolt 16 a sufficient distance to bring the detent 20 into locking engagement with the neXt tooth above that with which it is engaged and this movement will be indicated by a slight click. When this click is heard the turning of the key should be stopped. The key 68 is thenk turned toward the right untilv it passes the nose 55 of pawl 52 forcing downwardly the bolt 47 which operates to move catch 39 into recess 11. n Thev key is then continued in its upward turning by turning toward the right which causes the terminal 71 of its ward to engage the loop 38 of spring 34 and forces said spring upwardly, at the same time permitting said terminal to engage` one of the teeth on the lower edge of the bolt 8 and move said bolt a sufficient distance to disengage the tooth 36 of spring 34 from its engagement with the recess 13 and permit it to drop into the front recess 12. The key is then turned again toward the left bringing the terminal 71 of its ward into engagement with the outer face or' nose 55 of pawl 52 and rocking said nose causing the teeth 51 thereof to raise bolt 47 a suiiicient distance to remove catch 39 out ot recess 11 and when the bolt reaches this position the head 59 of the spring 57 will extend inwardly under the projection 49 and thus hold said bolt and catch in raised position. The key 68 is then turned again toward the right bringing the ward terminal 71 again into engagement with the loop 38 raisingsaid loop and the necessary in order to completely retract bolt 8 which is accomplished by the engagement of the ward of said key with the recesses 7 5 in the lower edge of *bolt 8.

lhen' it is desired to again lock or project bolt 8 the key G8 is turned toward the right a sufficient number of times to completely project bolt 8 into locking position, whichwhen it reaches saidposition will bring the recesses la and ll opposite linger l5 and catclr-39 respectively and these elements urnder the tension of their springs will spring into locking engagement with said recesses. The tooth 36 will also drop into locking engagementwith the recess 13 at the top ot the bolt aln'dv said' bolt will be locked in projected position until the key is again manipulated in they manner above described.

It is to be understood that the combination herel shown may be changed by arranging. the movable parts of the device so as to make it necessary to move the bolt 1G downwardly two or more notches before causing the complete withdrawal of this finger l5 from its recess` ll-f, or by varying the' number of notches or recesses in the upper edge of the bolt with which the tooth 36 of spring 34 engages or by changing the construction and operation of the pawl 52 and bolt Li7 so as to render it necessary to swing said pawl. upon its pivot several times before completely disengaging catch 39 from the recess ll of bolt 8.

From the foregoing description, taken inl connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains and while I have describedr the principle of operation or' the invention together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are within the scope of the claimed-invention. y

I claim:

l. In a key controlled combination lock, an inclosing casing, a locking bolt slidable into and out of said casing,spring pressed :means operable from opposite edges of said bolt' to interlockingly engage therewith, pawl actuated means 'for disengagmg said spring' pressedV means from said bolt and arranged on one side of said bolt, and a key for operating said pawls.

2. In a key controlled combination lock, an inclosing casing, a locking bolt slidable into and out of said casing, a pair of plates movable toward and away from said locking bolt on opposite sides thereof, cooperating interlocking elements carried by said locking bolt andv by said last mentioned plates whereby said locking bolt is held in projected position, key controlled means for retracting said plates from engagement with said locking bolt, and means for holding said plates in released position. p

8. In a key controlled combination lock, an inclosing casing,y a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane Aof movement of said bolt for locking the bolt in projected position, a key, and means operable by the oscillation of said key to disengage said catches.

l. In a key controlled combination lock, an inclosing casing, a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane of movement of said bolt for locking the bolt in projected position, one of said catches having teeth-0n its op'- posite sides, a spring projected detent for engaging a tooth on one side and locking said catch in retracted position, a pawl pivotedy intermediately of its ends on the other side of saidi catch with teeth on one endmeshing with the teeth of the catch and a nose on its other end', a'A spring` engaging the nose' of said pawl for holding its toothed end. engaged with Said catch and for returning itatter actuation, a pawl connected to release the other catch and a key adapted to be positioned to actuate said pawl's on the oscillation thereof to disengage said catches from said bo-lt.

In a key controlled combination lock, an inclosing` casing, a main locking bolt slidable into and out of said casing, spring project-,ed catches movable in a plane at right angles to the plane of movement oit' said bolt for locking the bolt in projected position, one of said catches havingteeth on its opposite sides, a springl projected detent 'for engaging a tooth on onel side and locking said catch in retracted position. a pawl pivotedintermediately of its ends on the other side of said catchy with teethI on one end meshing with the teeth of the catch anda nose on its other end, a spring engaging the nose of said pawl for holding its toothed end engaged with said catch and for returning it after actua-tion, *a pawl connected to release the other catch, a key adapted to be positioned to actua-te said pawls on the oscillation thereof to disengage said catches from said bolt, and' means on said bolt for engagement by said key to withdraw it on the release thereot from said catches.

6. In al key controlled. combination lock,

an inclosing casing, a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane of movement of said bolt for locking the bolt in projected position, a toothed member slidable in said casing opposite said catch on the other side of said bolt, a link connecting said catch and member, a toothed pawl meshing with the teeth of said member, a coiled spring connected with the nose of said pawl to hold said catch normally in engaged position, a pawl controlling the other catch, and a key adapted to be positioned to actuate said pawls on the oscillation of the key to disengage said catches.

7. In a key controlled combination lock, an inclosing casing, a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane of movement of said bolt for locking the bolt in projected position, a toothed member slidable in said casing opposite said catch on the other side of said bolt, a link connecting said catch and member, a toothed pawl meshing with the teeth of said member, a coiled spring connected with the nose of said pawl to hold said catch normally in engaged position, the other catch having teeth on its opposite sides, a spring projected detent for engaging a tooth on one side and locking said catch in retracted position, a pawl pivoted intermediately or' its ends on the other side of said catch with teeth on one end meshing with the teeth of the catch and a nose on its other end, a spring engaging the nose of said pawl for holding its toothed end engaged with said catch and for returning it after actuation, and a key adapted to be positioned to actuate said pawls on the oscillation of the key to disengage said catches.

8. In a key controlled combination lock,

an inclosing casing, a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane of movement of said bolt for locking the bolt in projected position, said bolt having ratchet teeth on its upper edge, a spring anchored at one end to said casing with its body portion resting on the upper edge of said bolt and provided with a tooth for locking engagement with said ratchet teeth, a rotary key actuated member, and controlling means for the locking spring and catches positioned in the path of said key whereby said bolt locking spring and catches are disengaged from the bolt on the proper manipulation of the key.

9. In a key controlled combination lock, an inclosing casing, a main locking bolt slidable into and out of said casing, spring projected catches movable in a plane at right angles to the plane of movement of said bolt for locking the bolt in projected position, said bolt having ratchet teeth on its upper edge, a spring anchored at one end to said casing with its body portion resting on the upper edge of said bolt and provided with a tooth for locking engagement with said ratchet teeth, said spring having an eXtension arranged on the outer face of said bolt and projecting below its lower edge, a rotary key actuated member, a key for connection with said member, catch releasing means located in the path of movement of the key bit, said spring extension being also located in said path, and means on the bolt whereby a predetermined turning of the key will operate to release said bolt and to retract it.

In testimony whereof I aiiiX my signature in presence of two witnesses.

f' POMPILIO MIANO. .Witnessesz WILLIAM S. FowLEn, JOHN E. BUIioI-I.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, ID. G. v 

